Manned Diving for Intelligibility Assessment of EBS-II Communication System Components with Heliox and Nitrox Breathing Mediums.

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Manned Diving for Intelligibility Assessment of EBS-II Communication System Components with Heliox and Nitrox Breathing Mediums.

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Title: Manned Diving for Intelligibility Assessment of EBS-II Communication System Components with Heliox and Nitrox Breathing Mediums.
Author: Fennewald, MJ; Olstad, WD
Abstract: In October 1996, manned dives were conducted to evaluate the ability of the MK-24 microphone and AN,POS headset communicationS components to produce intelligible speech while diving with the MK-16 MOD 0 Underwater Breathing ApparatuS (UBA) in closed and open circuit modes and while breathing HeD2 and N202 at various depths. The objectives were to evaluate the ability of the MK-24 microphone to produce intelligible speech with divers breathing ReD2 (0.7PPO) to 300 few and shallower both with and without a helium speech unscrambler (HSU) To evaluate the ability of the MK-24 microphone to produce intelligible speech with divers breathing N202 (0.7PP02) in closed circuit mode and air in the open-circuit mode to 150 few and shallower. To evaluate the ability of the AN/POS headset to reproduce intelligible speech from topside and between divers breathing ReD2 (0.7PPO(2)), N(2)0(2) (0.7PPO(2)) and air to 300 fsw and shallower both with an without an HSU.
Description: Citation Status: Active; Citation Classification: Unclassified; Title Classification: Unclassified; Report Classification: Unclassified; Identifier Classification: Unclassified; Abstract Classification: Unclassified; Distribution Limitation(s): 01 - APPROVED FOR PUBLIC RELEASE; Information provided by the Department of Defense and the Defense Technical Information Center (http://www.dtic.mil/) is considered public information and may be distributed or copied unless otherwise specified. Use of appropriate byline/photo/image credits is requested.
URI: http://archive.rubicon-foundation.org/3569
Date: 1997

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